Asm Health Checker Found 1 New Failures Upd Jun 2026

Communication loss across Oracle Real Application Clusters (RAC) nodes can provoke a dirty detach from the cluster lock domain.

When the checker encounters an anomaly, it registers a "failure" within the Oracle Cluster Health Advisor (CHA) or the Grid Infrastructure alert logs. The generic notification "found 1 new failures" acts as an umbrella warning, requiring manual inspection to uncover the exact root cause. Step 1: Locating the Failure Details

An automated rotation cycle failed, leaving the secret in a broken state or causing a mismatch with the target database. Step-by-Step Diagnostic Framework

The first step is to determine precisely which disk group or component is affected. You can do this by querying Oracle's V$HM_RUN view to review the health check report. asm health checker found 1 new failures

To help me give you more specific troubleshooting steps, could you tell me: What is the or code?

Disk group redundancy failures (e.g., if a disk fails in a normal redundancy group, it checks if the partner mirror is healthy).

Sometimes, the alert is triggered not by a real failure but by a bug. For example, users of CloudLinux with CageFS enabled reported false-positive health check warnings on cPanel v134 and newer. In this case, the solution was to wait for a patch (e.g., cagefs-7.6.31-1 ) or update your software. Step 1: Locating the Failure Details An automated

Loss of physical fiber channel paths, faulty host bus adapters (HBAs), or incorrect multipathing layers ( multipathd ) will drop the physical storage paths. ASM detects this loss of communication as a failed disk heartbeat. 3. Disk Header Mutilation

This is the most frequent partner error. If the storage layer loses connectivity to a device for even a few seconds, Oracle ASM may drop the disk or force a complete dismount of the disk group to protect against data corruption. In your log, it will typically look like this:

Verification failure due to expired security subscriptions. To help me give you more specific troubleshooting

ASM Health Checker detected one new failure in your environment. This post explains what that means, likely causes, immediate checks you should run, step-by-step troubleshooting, and recommended fixes to restore full health.

: The subsystem encounters a physical or logical I/O read/write error on a disk path.